GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2568e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687
MD5b0fbc0bb4401235fbea63d5b0d2fdc2d
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name8e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: 8e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687
  • MD5: b0fbc0bb4401235fbea63d5b0d2fdc2d

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: 8e91e3859221e8c8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "8e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687"
}

GandCrab — Malware Profile

GandCrab, 2018-2019 aktif RaaS ailesidir. 1.5 milyar USD hasar. RSA+Salsa20. Haziran 2019 kapandi. REvil oncusu.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — GandCrab
# SHA256 8e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687 # MD5 b0fbc0bb4401235fbea63d5b0d2fdc2d
TypeValueNote
sha256 8e91e3859221e8c8be7ba374dd561bf8218ff3f1037e45e10602970dbb3ab687 Sample:GandCrab
md5 b0fbc0bb4401235fbea63d5b0d2fdc2d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi